@Override
public void run() {
assertSame(this, Thread.currentThread());
try {
while (true) {
Request request = requestQueue.take();
Object result;
try {
result = invokeMethod(request.methodName, request.arguments);
} catch (ThreadDeath death) {
return;
} catch (InvocationTargetException exception) {
responseQueue.put(new Response(request.methodName, null, exception.getTargetException()));
continue;
} catch (Throwable throwable) {
responseQueue.put(new Response(request.methodName, null, throwable));
continue;
}
responseQueue.put(new Response(request.methodName, result, null));
}
} catch (ThreadDeath death) {
return;
} catch (InterruptedException ignored) {
// SynchronousQueue sometimes throws InterruptedException while the threads are stopping.
} catch (Throwable uncaught) {
this.uncaughtThrowable = uncaught;
}
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
SynchronousQueue<Boolean> queue = new SynchronousQueue<Boolean>();
timeoutService.start(queue);
Boolean initializedResult;
try {
initializedResult = queue.poll(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new ServletException(e);
}
resp.getWriter().append("Initialized:" + initializedResult);
resp.getWriter().append("\n");
// wait for the request scope created for the async method invocation to be destroyed
try {
new Timer()
.setDelay(2000l)
.addStopCondition(
new StopCondition() {
public boolean isSatisfied() {
return observingBean.isDestroyedCalled();
}
})
.start();
} catch (InterruptedException e) {
throw new ServletException(e);
}
resp.getWriter().append("Destroyed:" + observingBean.isDestroyedCalled());
resp.setContentType("text/plain");
}
/**
* Offer a message that may have a synchronous consumer waiting.
*
* @param destination Queue name
* @param message Received message. Can be NetFault or NetNotification
*/
protected boolean offerPollResponse(String destination, NetMessage message) {
synchronized (_syncSubscriptions) {
SynchronousQueue<NetMessage> synchronousQueue = pendingPolls.get(destination);
if (synchronousQueue != null) {
return synchronousQueue.offer(message);
}
return false;
}
}
public void concreteWriteReadTest() {
String tainted = TelephonyManager.getDeviceId();
SynchronousQueue<String> q = new SynchronousQueue<String>();
q.add(tainted);
// not implemented for SynchronousQueue: q.element();
String taintedElement3 = q.poll();
ConnectionManager cm = new ConnectionManager();
cm.publish(taintedElement3);
}
/**
* Obtain a queue message synchronously.
*
* @param queueName Name of the queue from where to retrieve a message
* @param timeout Timeout, in milliseconds. When timeout is reached a TimeoutException is thrown.
* Zero means that the client wants to wait forever. A negative value means that the client
* doesn't want to wait if there are no messages is local agent's queue.
* @param reserveTime Message reserve time, in milliseconds. Polled messages are reserved, by
* default, for 15 minutes. If clients prefer a different reserve time , bigger or small, they
* can specify it.
* @param acceptRequest An AcceptRequest object used handling Accept messages.
* @return A notification containing the queue message. Or null if timeout was a negative value
* and there was no message in local agent's queue.
*/
public NetNotification poll(
String queueName, long timeout, long reserveTime, AcceptRequest acceptRequest)
throws Throwable {
if (StringUtils.isBlank(queueName))
throw new IllegalArgumentException("Mal-formed Poll request. queueName is blank.");
NetPoll poll = new NetPoll(queueName, timeout);
NetAction action = new NetAction(ActionType.POLL);
action.setPollMessage(poll);
NetMessage message = buildMessage(action);
SynchronousQueue<NetMessage> synQueue = new SynchronousQueue<NetMessage>();
synchronized (_syncSubscriptions) {
if (_syncSubscriptions.containsKey(queueName))
throw new IllegalArgumentException("Queue " + queueName + " has already a poll runnig.");
_syncSubscriptions.put(queueName, message);
pendingPolls.put(queueName, synQueue);
}
if (reserveTime > 0) {
message.getHeaders().put(Headers.RESERVE_TIME, reserveTime + "");
}
if (acceptRequest != null) {
poll.setActionId(acceptRequest.getActionId());
PendingAcceptRequestsManager.addAcceptRequest(acceptRequest);
}
getNetHandler().sendMessage(message);
NetMessage receivedMsg = synQueue.take();
synchronized (_syncSubscriptions) {
_syncSubscriptions.remove(queueName);
pendingPolls.remove(queueName);
}
if (receivedMsg == BrokerProtocolHandler.TimeoutUnblockNotification)
throw new TimeoutException();
if (receivedMsg == BrokerProtocolHandler.NoMessageUnblockNotification) return null;
NetNotification m = null;
if (receivedMsg.getAction().getActionType().equals(ActionType.NOTIFICATION)) {
m = receivedMsg.getAction().getNotificationMessage();
} else {
log.error(
"Poll unbloqued by a message that wasn't of any of the expeceted error nor a notification.");
return null;
}
return m;
}
public void onActivityResult(int resultCode, Intent data) {
try {
if (resultCode != Activity.RESULT_OK) {
mFilePickerResult.put("");
return;
}
File file = new File(Environment.getExternalStorageDirectory(), sImageName);
sImageName = "";
mFilePickerResult.put(file.getAbsolutePath());
} catch (InterruptedException e) {
Log.i(LOGTAG, "error returning file picker result", e);
}
}
@Override
public void messageArrived(String topic, MqttMessage message) throws Exception {
final String METHOD = "messageArrived";
if (topic.equals(ServerTopic.RESPONSE.getName())) {
LoggerUtility.log(
Level.FINE,
CLASS_NAME,
METHOD,
"Received response from IoT Foundation, topic (" + topic + ")");
String responsePayload = new String(message.getPayload(), "UTF-8");
JsonObject jsonResponse = new JsonParser().parse(responsePayload).getAsJsonObject();
try {
String reqId = jsonResponse.get("reqId").getAsString();
LoggerUtility.fine(CLASS_NAME, METHOD, "reqId (" + reqId + "): " + jsonResponse.toString());
MqttMessage sentMsg = requests.remove(reqId);
if (sentMsg != null) {
queue.put(jsonResponse);
}
} catch (Exception e) {
if (jsonResponse.get("reqId") == null) {
LoggerUtility.warn(
CLASS_NAME,
METHOD,
"The response " + "does not contain 'reqId' field (" + responsePayload + ")");
} else {
LoggerUtility.log(Level.SEVERE, CLASS_NAME, METHOD, "Unexpected exception", e);
}
}
} else {
LoggerUtility.warn(CLASS_NAME, METHOD, "Unknown topic (" + topic + ")");
}
}
private void runOnIcThread(Handler icHandler, final Runnable runnable) {
if (DEBUG) {
ThreadUtils.assertOnUiThread();
Log.d(LOGTAG, "runOnIcThread() on thread " + icHandler.getLooper().getThread().getName());
}
Runnable runner =
new Runnable() {
@Override
public void run() {
try {
Runnable queuedRunnable = mIcRunnableSync.take();
if (DEBUG && queuedRunnable != runnable) {
throw new IllegalThreadStateException("sync error");
}
queuedRunnable.run();
} catch (InterruptedException e) {
}
}
};
try {
// if we are not inside waitForUiThread(), runner will call the runnable
icHandler.post(runner);
// runnable will be called by either runner from above or waitForUiThread()
mIcRunnableSync.put(runnable);
} catch (InterruptedException e) {
} finally {
// if waitForUiThread() already called runnable, runner should not call it again
icHandler.removeCallbacks(runner);
}
}
/**
* After starting this class (start()), this method MAY be called to block the thread that created
* the instance of this class. Otherwise, the thread will finish and the instance of this class
* will be terminated.
*
* @throws InterruptedException unsuccessful join
*/
public void join() throws InterruptedException {
// TODO:
// initiate a graceful termination procedure (i.e., close()).
log.info("joining");
@SuppressWarnings("unused")
Object object = dispatcherJoin.take();
}
private void putNextValue(String value) {
try {
res.put(value);
} catch (InterruptedException interEx) {
Thread.currentThread().interrupt();
}
}
private void readNextValue() {
try {
curValue = res.take();
} catch (InterruptedException interEx) {
Thread.currentThread().interrupt();
}
}
/**
* Receives a response from this thread.
*
* @throws TimeoutException if this thread does not offer a response within a reasonable amount of
* time
* @throws AssertionFailedError if the given method name does not match the name of the method
* this thread has called most recently
*/
private Response getResponse(String methodName) throws Exception {
Response response = responseQueue.poll(TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
if (response == null) {
throw new TimeoutException();
}
assertEquals(methodName, response.methodName);
return response;
}
/**
* Causes this thread to call the named method, and asserts that this thread becomes blocked on
* the lock-like object. The lock-like object must have a method equivalent to {@link
* java.util.concurrent.locks.ReentrantLock#hasQueuedThread(Thread)}.
*/
public void callAndAssertBlocks(String methodName, Object... arguments) throws Exception {
checkNotNull(methodName);
checkNotNull(arguments);
assertEquals(false, invokeMethod("hasQueuedThread", this));
sendRequest(methodName, arguments);
Thread.sleep(DUE_DILIGENCE_MILLIS);
assertEquals(true, invokeMethod("hasQueuedThread", this));
assertNull(responseQueue.poll());
}
public void finishDialog(String aReturn) {
mInputs = null;
mDialog = null;
mSelected = null;
try {
mPromptQueue.put(aReturn);
} catch (Exception ex) {
}
}
public static String waitForReturn() throws InterruptedException {
String value;
while (null == (value = mPromptQueue.poll(1, TimeUnit.MILLISECONDS))) {
GeckoAppShell.processNextNativeEvent();
}
return value;
}
/**
* Causes this thread to call the named method, and asserts that this thread thereby waits on the
* given condition-like object. The lock-like object must have a method equivalent to {@link
* java.util.concurrent.locks.ReentrantLock#hasWaiters(java.util.concurrent.locks.Condition)},
* except that the method parameter must accept whatever condition-like object is passed into this
* method.
*/
public void callAndAssertWaits(String methodName, Object conditionLikeObject) throws Exception {
checkNotNull(methodName);
checkNotNull(conditionLikeObject);
// TODO: Restore the following line when Monitor.hasWaiters() no longer acquires the lock.
// assertEquals(false, invokeMethod("hasWaiters", conditionLikeObject));
sendRequest(methodName, conditionLikeObject);
Thread.sleep(DUE_DILIGENCE_MILLIS);
assertEquals(true, invokeMethod("hasWaiters", conditionLikeObject));
assertNull(responseQueue.poll());
}
public void endWaitForUiThread() {
if (DEBUG) {
ThreadUtils.assertOnUiThread();
Log.d(LOGTAG, "endWaitForUiThread()");
}
try {
mIcRunnableSync.put(mIcSignalRunnable);
} catch (InterruptedException e) {
}
}
// Place an object in the sync queue, indicating that the calling thread is finished,
// and any waiting thread may continue. Placing an Exception into the queue indicates
// an error condition has occurred that should be handled by the waiting thread.
private void finished(Object obj) {
while (true) {
try {
queue.put(obj);
break;
} catch (InterruptedException e1) {
// no-op
}
}
}
@Test
public void subscription() throws Exception {
TestApplicationContext context = TestUtils.createTestApplicationContext();
SynchronousQueue<String> queue = new SynchronousQueue<String>();
TestBean testBean = new TestBean(queue);
QueueChannel channel = new QueueChannel();
context.registerChannel("channel", channel);
Message<String> message = new GenericMessage<String>("testing");
channel.send(message);
assertNull(queue.poll());
MethodInvokingMessageHandler handler = new MethodInvokingMessageHandler(testBean, "foo");
PollingConsumer endpoint = new PollingConsumer(channel, handler);
endpoint.setTrigger(new PeriodicTrigger(10));
context.registerEndpoint("testEndpoint", endpoint);
context.refresh();
String result = queue.poll(2000, TimeUnit.MILLISECONDS);
assertNotNull(result);
assertEquals("testing", result);
context.stop();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
String filePickerResult = "";
if (data != null && resultCode == RESULT_OK) {
try {
ContentResolver cr = getContentResolver();
Uri uri = data.getData();
Cursor cursor =
GeckoApp.mAppContext
.getContentResolver()
.query(uri, new String[] {OpenableColumns.DISPLAY_NAME}, null, null, null);
String name = null;
if (cursor != null) {
try {
if (cursor.moveToNext()) {
name = cursor.getString(0);
}
} finally {
cursor.close();
}
}
String fileName = "tmp_";
String fileExt = null;
int period;
if (name == null || (period = name.lastIndexOf('.')) == -1) {
String mimeType = cr.getType(uri);
fileExt = "." + GeckoAppShell.getExtensionFromMimeType(mimeType);
} else {
fileExt = name.substring(period);
fileName = name.substring(0, period);
}
File file = File.createTempFile(fileName, fileExt, sGREDir);
FileOutputStream fos = new FileOutputStream(file);
InputStream is = cr.openInputStream(uri);
byte[] buf = new byte[4096];
int len = is.read(buf);
while (len != -1) {
fos.write(buf, 0, len);
len = is.read(buf);
}
fos.close();
filePickerResult = file.getAbsolutePath();
} catch (Exception e) {
Log.e(LOG_FILE_NAME, "showing file picker", e);
}
}
try {
mFilePickerResult.put(filePickerResult);
} catch (InterruptedException e) {
Log.i(LOG_FILE_NAME, "error returning file picker result", e);
}
}
public void run() {
for (Course course : Course.values()) {
Food food = course.randomSelection();
try {
waitPerson.placeOrder(this, food);
// Blocks until course has been delivered:
print(this + "eating " + placeSetting.take());
} catch (InterruptedException e) {
print(this + "waiting for " + course + " interrupted");
break;
}
}
print(this + "finished meal, leaving");
}
// Causes the caller thread to block until an object is placed in the sync queue/
// If an Exception is place in the queue, it this thrown by the calling thread.
private void join() throws Exception {
while (true) {
Object result = null;
try {
result = queue.take();
if (result instanceof Exception) {
throw (Exception) result;
}
break;
} catch (InterruptedException e) {
if (result != null) throw e;
}
}
}
public Bitmap loadDrawable(final String imageUrl, final int page, final ImageCallback callback) {
Bitmap bitmap = getBitmap(imageUrl);
if (null != bitmap) {
return bitmap;
}
try {
taskQueue.put(new WorkItem(imageUrl, page, callback));
} catch (InterruptedException e) {
e.printStackTrace();
}
return null;
}
public void waitForUiThread(Handler icHandler) {
if (DEBUG) {
ThreadUtils.assertOnThread(icHandler.getLooper().getThread(), AssertBehavior.THROW);
Log.d(
LOGTAG,
"waitForUiThread() blocking on thread " + icHandler.getLooper().getThread().getName());
}
try {
Runnable runnable = null;
do {
runnable = mIcRunnableSync.take();
runnable.run();
} while (runnable != mIcSignalRunnable);
} catch (InterruptedException e) {
}
}
@Test
public void testGivenExecutorUsed() throws InterruptedException {
// easily identifiable thread pool
Executor executor =
Executors.newSingleThreadExecutor(
runnable -> {
return new Thread(runnable, FireAsyncWithExecutorTest.class.getName());
});
request.fireAsync(new Request(), executor);
final Response response = SYNCHRONIZER.poll(30, TimeUnit.SECONDS);
assertTrue(REQUEST_RECEIVED.get());
assertNotNull(RESPONSE_RECEIVED.get());
assertEquals(
FireAsyncWithExecutorTest.class.getName(), RESPONSE_RECEIVED.get().getThread().getName());
assertNotNull("Synchronization failed", response);
assertEquals(FireAsyncWithExecutorTest.class.getName(), response.getThread().getName());
}
public void concreteWriteReadNegativeTest() {
String tainted = TelephonyManager.getDeviceId();
String untainted = "Hello world!";
SynchronousQueue<String> q = new SynchronousQueue<String>();
SynchronousQueue<String> p = new SynchronousQueue<String>();
q.add(tainted);
p.add(untainted);
String taintedElement = q.poll();
String untaintedElement = p.poll();
taintedElement.toString();
ConnectionManager cm = new ConnectionManager();
cm.publish(untaintedElement);
}
public String showFilePicker(String aMimeType) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType(aMimeType);
GeckoApp.this.startActivityForResult(
Intent.createChooser(intent, getString(R.string.choose_file)), FILE_PICKER_REQUEST);
String filePickerResult = "";
try {
while (null == (filePickerResult = mFilePickerResult.poll(1, TimeUnit.MILLISECONDS))) {
Log.i("GeckoApp", "processing events from showFilePicker ");
GeckoAppShell.processNextNativeEvent();
}
} catch (InterruptedException e) {
Log.i(LOG_FILE_NAME, "showing file picker ", e);
}
return filePickerResult;
}
public static void receive(@Observes Response response) throws InterruptedException {
RESPONSE_RECEIVED.set(response);
SYNCHRONIZER.offer(response, 10, TimeUnit.SECONDS);
}
public void deliver(Plate p) throws InterruptedException {
// Only blocks if customer is still
// eating the previous course:
placeSetting.put(p);
}
@Override
public Task awaitTask() throws InterruptedException {
sem.release();
return queue.take();
}
